Resonance transformation of the field of a linear source into multipole radiation with the help of a cylindrical metamaterial layer

2014 ◽  
Vol 59 (7) ◽  
pp. 704-709 ◽  
Author(s):  
A. P. Anyutin ◽  
I. P. Korshunov ◽  
A. D. Shatrov
2020 ◽  
Vol 195 (1) ◽  
pp. 50-68
Author(s):  
Yuxuan Liu ◽  
Kyle Vaughn ◽  
Brendan Kochunas ◽  
Thomas Downar

1989 ◽  
Vol 26 (11) ◽  
pp. 2186-2193 ◽  
Author(s):  
Jacques Locat ◽  
Pierre Gélinas

The results of an extensive hydrogeological investigation of the effects of de-icing road salts on Highway 55 near Trois-Rivières-Ouest indicate that a salt lens with chloride concentrations exceeding 800 mg/L exists below the highway. Maximum chloride concentration at the nearby pumping wells, not exceeding 140 mg/L, is reached only in late summer, whereas the maximum chloride infiltration follows the spring snowmelt. About 1 year's worth of road salts is retained in the unsaturated zone. The salt lens, in the upper part of the aquifer beneath the highway, has developed to a thickness of 8 m and a width of 400 m and constitutes a linear source of salts for the aquifer. The shape of this lens is distorted by the action of the pumping wells, and the lens is partly depleted by the end of the summer. Because of the particular characteristics of the aquifer at the site studied and the exploitation methods, no long-term threat to the water quality is foreseen.


2015 ◽  
Vol 2015 (06) ◽  
pp. 037-037 ◽  
Author(s):  
Ednaldo L.B. Junior ◽  
Manuel E. Rodrigues ◽  
Mahouton J.S. Houndjo

2021 ◽  
Author(s):  
Maria Cojocari ◽  
Alexey Basharin
Keyword(s):  

2019 ◽  
Vol 105 (6) ◽  
pp. 912-917
Author(s):  
Ivan V. Andronov

The problem of diffraction of a high-frequency point source acoustic field by an infinite elliptic cylinder with a strongly elongated cross-section is studied. At every direction of propagation, the solution is shown to be similar to those of a linear source field diffraction by a cylinder with correspondingly enlarged major semiaxis.


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